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Megapixels @ Megahertz -- The AGIPD High-Speed Cameras for the European XFEL | | Ulrich Trunk
; Aschkan Allahgholi
; Julian Becker
; Annette Delfs
; Roberto Dinapoli
; Peter Göttlicher
; Heinz Graafsma
; Dominic Greiffenberg
; Helmut Hirsemann
; Stefanie Jack
; Alexander Klyuev
; Hans Krüger
; Manuela Kuhn
; Torsten Laurus
; Alessandro Marras
; Davide Mezza
; Aldo Mozzanica
; Jennifer Poehlsen
; Ofir Shefer Shalev
; Igor Sheviakov
; Bernd Schmitt
; Jörn Schwandt
; Xintian Shi
; Sergej Smoljanin
; Jiaguo Zhang
; Manfred Zimmer
; | | Date: |
6 Aug 2019 | | Abstract: | The European XFEL is an extremely brilliant Free Electron Laser Source with a
very demanding pulse structure: trains of 2700 X-Ray pulses are repeated at 10
Hz. The pulses inside the train are spaced by 220 ns and each one contains up
to $10^{12}$ photons of 12.4 keV, while being $le 100$ fs in length. AGIPD,
the Adaptive Gain Integrating Pixel Detector, is a hybrid pixel detector
developed by DESY, PSI, and the Universities of Bonn and Hamburg to cope with
these properties. It is a fast, low noise integrating detector, with single
photon sensitivity (for $ ext{E}_{gamma} ge 6$ keV) and a large dynamic
range, up to $10^4$ photons at 12.4 keV. This is achieved with a charge
sensitive amplifier with 3 adaptively selected gains per pixel. 352 images can
be recorded at up to 6.5 MHz and stored in the in-pixel analogue memory and
read out between pulse trains. The core component of this detector is the AGIPD
ASIC, which consists of $64 imes 64$ pixels of $200 {mu} ext{m} imes 200
{mu} ext{m}$. Control of the ASIC’s image acquisition and analogue readout is
via a command based interface. FPGA based electronic boards, controlling ASIC
operation, image digitisation and 10 GE data transmission interface AGIPD
detectors to DAQ and control systems. An AGIPD 1 Mpixel detector has been
installed at the SPB experimental station in August 2017, while a second one is
currently commissioned for the MID endstation. A larger (4 Mpixel) AGIPD
detector and one to employ Hi-Z sensor material to efficiently register photons
up to $ ext{E}_{gamma} approx 25$ keV are currently under construction. | | Source: | arXiv, 1908.2103 | | Services: | Forum | Review | PDF | Favorites | |
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